Wall device for fittings

ABSTRACT

A wall device for fittings includes: a plurality of horizontal and vertical uprights ( 2 ), mutually coupled by at least first adjustable fixing means ( 10 ); connection means ( 20 ) for joining the fittings. The uprights ( 2 ) include at least a first channel section ( 5 ) and a second channel section ( 6 ), each including, starting from a respective bottom side ( 50 ), two respective opposed side parts ( 51 ) nearly orthogonal to the bottom side ( 50 ), two respective first portions ( 52 ), parallel to the bottom side ( 50 ). Said sides, parts and portions ( 50, 51, 52 ) of the at least first ( 5 ) and second ( 6 ) channel sections define respective cavity ( 55 ) and longitudinal openings ( 8 ) for the first fixing means ( 10 ) and for the connection means ( 20 ). At least a first portion ( 52 ) of each first channel section ( 5 ) has also a second portion ( 53 ) orthogonal to the first portions ( 52 ) and facing outwards of the respective cavity ( 55 ).

TECHNICAL FIELD

The present invention relates to the devices used in the buildingmanufacturing and restructuring. Particularly, the invention refers to awall for fittings, fit for housing and supporting pipes, ducts, hydrothermo sanitary apparatuses, cables, wires, technological nets.

BACKGROUND ART

There are known devices, generally used in the building manufacturingand restructurings, constituted by structures or frameworks which areembedded and/or fixed to the walls in order to accommodate and supportfittings, for instance pipes and sanitary equipments. Said frameworksallow to make easier and quicker to install and assembly hydro thermosanitary elements, such as sinks, hygienic cups, reservoirs, bidet orwhite goods for instance boilers, washers, or ducts for the conditioningsystem or the passage of electric and signal cables.

Once completed the connection of the fittings, the frameworks are thenembedded or covered by fixed casing panels or by a second layer of wall.

The main drawback of said known device consists in that they do notallow changes or variants of the structure or the framework especiallyafter the installation.

Other drawback of the known devices consists in the elements havingpredefined and standard dimensions, which cannot be customized ormodified, according to the elements to be fixed and the characteristicsof the place to be built and/or restructured.

Further drawback consists in that said known devices cannot be easilyinspected and, in case of maintenance interventions of the innerfittings therein, they require many masonry works firstly destructiveand afterwards reconstructive.

Other drawback of the known devices consists in that they require heavyworks during the installation and assemblage phase and a suitableprearrangement and preparation of the walls, inside which said devicemust be inserted, in correspondence of appropriate embedding or seats.

DISCLOSURE OF THE INVENTION

The main object of the present invention is to propose a wall device forfixtures and fittings which is adjustable and customizable according tospecific constructive requirements, and fit to be modified and alsoeasily changed after the installation and the assemblage.

Other object is to propose a device, which can be fixed to an existingwall, requiring a minimum prearrangement of the preexisting walls, bothin construction phase and in restructuring phase.

Further object is to propose a device fit to constitute aself-supporting independent wall.

Other object is that to propose a device having detachable coveringpanels, in order to allow an easy and quick installation and inspectionof the inner pipes and ducts and the hydro thermo sanitary apparatusessupported thereby.

The above-mentioned objects are achieved according to the content of theclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

The characteristics of the invention are underlined in the followingwith particular reference to the attached drawings, in which:

FIG. 1 shows a front view of the wall device for fittings, and the like,of the present invention;

FIG. 2 shows a partial section view according to line II-II of FIG. 1;

FIG. 3 shows a plant view of a plate mean of FIG. 2;

FIG. 4 shows a section view according to line IV-IV of FIG. 2;

FIG. 5 shows a partial section view according to line V-V of FIG. 1;

FIG. 6 shows a back view of connection means of the FIG. 1 device;

FIG. 7 shows a section partial view according to line VII-VII of FIG. 1;

FIG. 8 shows a front view of a variant of the FIG. 1 device;

FIG. 9 shows a partial section view according to line IX-IX of FIG. 8;

FIG. 9A shows a partial section view of a variant of third fixing meansof FIG. 9;

FIG. 10 shows a partial section view according to line X-X of FIG. 8;

FIG. 11 shows a partial section view of a variant of second fixing meansof FIG. 5;

FIG. 12 shows a partial section view of a variant of a first channelsection and of second fixing means of the FIG. 5 device;

FIG. 13 shows a view of fourth fixing means of the FIG. 1 deviceassociated to second channel sections in which some parts have beenremoved for better underlining others;

FIG. 14 shows a partial section view according to line XIV-XIV of FIG.13;

FIG. 15 shows an axonometric view of the fourth fixing means of FIG. 13;

FIGS. 16 and 17 show respectively a side view and partial section viewaccording to line XVII-XVII of FIG. 16 of a variant of the first fixingmeans of the device of FIG. 1;

FIG. 18 shows a partial cross section view of a further variant of thedevice of FIG. 1;

FIG. 19 shows a partial section view of removable hanging means of thedevice;

FIG. 20 shows an axonometric view of a further variant of the firstfixing means of the FIG. 1 device;

FIG. 21 shows a partial axonometric view of the variant of FIG. 20connected to channel sections;

FIG. 22 shows a variant of FIG. 20 fixing means;

FIG. 23 shows a further variant of FIG. 20 fixing means;

FIG. 24 shows a variant of a channel section of FIG. 2.

BEST MODE OF CARRYING OUT THE INVENTION

With reference to figures from 1 to 7, numeral 1 indicates the walldevice for fittings, for instance ducts, wirings, sinks, hygienic vases,heaters, white goods and the like, known and not shown, substantiallyconstituted by horizontal and vertical uprights 2, mutually connectedthrough adjustable first fixing means 10. The device includes connectionmeans 20 fit for connecting the fittings to the uprights 2.

Each yertical upright 2 is constituted by a first channel section 5 orby a second channel section 6, whose each one including, starting from arespective bottom side 50, two respective opposed side parts 51 andalmost orthogonal to the bottom side 50 and two first portions 52parallel to the bottom side 50.

The bottom side 50, the side parts 51 and the first portions 52 definerespectively a cavity 55 and a longitudinal opening 8 fit for housingthe first fixing means 10 and for the connection means 20.

At least a first portion 52 of each first channel section 5 has also asecond portion 53 orthogonal to the first portion 52 and facing outwardthe respective cavity 55. The second portions 53 of the first channelsection 5 are carried out in a single body with the latter, byappropriately folding said channel section.

In the preferred embodiment the wall device 1 object of the presentinvention includes two vertical uprights 2, constituted by first channelsections 5, and two horizontal uprights 2, each one consisting of thesecond channel section 6.

The device further has a middle horizontal upright 2 carried out by asecond channel section 6 and fit for supporting, through the connectionmeans 20, fittings, ducts, hydro thermo sanitary elements.

It is provided that each of the section channel 5, 6 has incorrespondence of the bottom side 50 one or more windows 57, fit toallow and make easier the introduction and the passage inside andthrough the device of pipes, ducts, wirings.

The connection between a second channel section 6 and a first channelsection 5 or a second channel section 6 of the uprights 2 is carried outby the first fixing means 10, each one constituted by a plate mean 15,having a nearly rectangular shape, which can be insert inside the cavity55 of the second channel section 6 and removably connected to a first“U” shaped bracket mean 16, which can be fit inside the cavity 55 of thechannel section 5, 6. The plate mean 15 and the bracket mean 16 clamp,by clamping means 7, for instance screws or bolts, the first portions 52of the channel section 6, blocking the second channel section 6 to thefirst fixing means 10. A sliding fixed joint between the fixing means 10and channel section 5 is carried out by inserting the ends of thebracket mean 16 into the cavity 55 of the channel section 5.

The connection between a first channel section 5 and a second channelsection 6 can be carried 35 out through second fixing means 11,constituted by the plate mean 15 and by an abutment mean 17, removablyconnected, through clamping means 7, in such way to clamp the secondportion 53 of the first channel section 5 to the first portions 52 of asecond channel section 6. In this case, tightening the clamping means 7,the two channel sections 5,.6 are reciprocally blocked.

The second fixing means 11, as shown in FIG. 11, can include spacermeans 23 which can be interposed between the clamping means 7 and therelated abutment mean 17 and allow to distribute more uniformly theclamping pressure on the portions of the channel section to block.

The plate mean 15 has two flat faces or chamfers 46, for instance flatand parallel, carried out in correspondence of two opposed vertexes ofthe same plate, to allow the rotation of the latter in operationalposition, after the insertion in the cavity 55 through the longitudinalslot 8.

There are provided third fixing means 12, shown in FIG. 9, to allowconnecting a first channel section 5 to a first channel section 5 or toa second channel section 6. The fixing means 12 are constituted by asecond bracket mean 18, “U” shaped and inserted inside the cavity 55 ofthe first channel section 5; the second bracket mean 18 is removablyconnected, through the clamping means 7, to inserting means 19 fitinside the cavity 55 of the remaining channel section 5, 6.

In alternative, as shown in FIG. 9A, the third fixing means 12 can beconstituted by a plate mean 15, inserted inside the cavity 55 of thefirst channel section 5 and connected, through clamping means 7, toinserting means 19, consisting of a channel section portion with hollowrectangular section, inserted inside the cavity 55 of the remainingchannel section 5, 6.

The end of the second bracket mean 18 and the inserting means 19 clampthe second portions 53 of the channel section 5, blocking the latter tothe first fixing means 10. The insertion of the inserting means 19 inthe cavity 55 of the channel section 5, 6 carries out a sliding fixesjoint between the fixing means 10 and said channel section.

Referring to figures from 20 to 22, the device 1 includes sixth fixingmeans 13, consisting of a “C” shaped element, which can be insertedinside the first channel section 5 and is provided with at least acouple of lateral slots 113, allowing the insertion, by rotations, ofthe first portions 52 of a second channel section 6.

The end, close to lateral slots 113, of central wall of sixth fixingmeans 13 has a first recess 114 fit for avoiding interferences witheventual nuts or screw head for fixing the second channel section 6 tothe ceiling or to the floor.

The inner end of the first recess 114 has a tab 116 protruding outwardsto form a stop for the first channel section 5; alternatively the innerends of lateral slots 113 can be provided with corresponding tabs 115,protruding outwards to form a stop.

The end of central wall of sixth fixing means 13, opposed to lateralslots 113, has a second recess 117, fit for making easier the assemblageoperations.

The fixing means 13 of FIG. 23, consists of a parallelepiped shapedelement made of solid plastic and having one free end provided with ahousing mean 118 consisting of a slot for a protrusion of a relatedcoupling mean 119 which can be inserted inside the first channel section5. Housing mean 118 and coupling mean 119 are provided with respectiveholes 120 for a fixing pin 121 or screw.

The channel section 5 of FIG. 24 has, in correspondence of the window57, a removable portion 61 fit for the insertion of elements, like pipesor tubes, inside the window 57 in an installation condition of thechannel section 5, 6. The removable portion 61 is fixed to the channelsection 5, 6 by means of screw, nuts and washer.

The wall device 1 can be embedded into a suitable opening or cavity in awall 60, or can be simply leaned against the latter.

The fixing of the device to the wall 60 is carried out through aplurality of fasten means 30, whose each one is constituted by a platemean 15, inserted in the cavity 55 of an second channel section 6 andremovably connected to a “L” shaped bracket mean 31, through clampingmeans 7. The bracket mean 31 is fixed to the wall 60 by means of screwsor wedges, of known type, and it has a slot 32 for allowing theregulation of the clamping means 7 position and, consequently, thedistance of the device 1 from the wall 60. Such characteristic isparticularly advantageous in the case in which said wall have noticeableshape irregularities.

Each connection mean 20 includes a support 21, which is detachablyconnected through clamping means 7, to a plate mean 15 inserted in thecavity 55 of a second channel section 6 of a middle horizontal upright2. In order to avoid the rotation of the support 21 with respect to theupright 2, it is provided an anti-rotation bracket 22, U shaped andconnected to the support 21, whose ends are inserted in the longitudinalslot 8 of the related channel section 6, for avoiding the rotation ofthe connection mean 20.

The device further includes fourth fixing means 25, shown in FIGS.13-15, fit for adjustably connecting second channel sections 6 to firstchannel section 5 or second channel section 6. Each fourth fixing mean25 includes a first portion 26 characterized by a transversal seat 28,fit for accommodating a first portion 52 of a channel section 6 and aprotrusion 27, almost orthogonal to said transversal seat 28 and whichcan be inserted inside the cavity 55 of a corresponding channel section5, 6. Threaded means block the fourth fixing mean 25 to the portion 52of the channel section 6, once defined the related position of the twochannel section.

There are provided covering panels 4, for instance made of Fermacell orvibrated cement or asbestos gypsum, fixed to the uprights 2, andparticularly positioned against the portions 52, 53 of the first 5 andsecond 6 channel sections, to which they are constrained by threadedconnections of known type.

Sealing means can be interposed between the first 5 and second 6 channelsections and the panels 4.

The figures from 8 to 10 show a variant of the wall device 1characterized by two horizontal uprights, upper and middle, constitutedby first channel section 5, and by a vertical middle upright consistingof a second channel section 6. The vertical uprights are carried out bytwo first channel section 5 sideways coupled with the interposition of aabutment spacer 29 and connected to connection means 24, consisting forinstance of a U shaped bracket, containing the edges 52, 53 and isblocked in position by clamping means, which sideways contact said firstportions 52.

The connection between the channel section 6 of the middle verticalupright and the channel sections 5 of the two horizontal uprights iscarried out by clamping the portions 52, 53 between an abutment plate 33inserted inside the cavity 55 of the channel section 6 and the abutmentmean 17.

In this case the wall device 1 is inserted into a passing through orblind space carried out in the wall 60, to which it is sideways clampedby lock means 59, of known type, screwed or welded or glued to channelsections 5, 6 of the device 1.

There are further provided L shaped bracket 34 of known type, fit formutually irremovably connecting the vertical and horizontal uprights 2in such a way to give to the device 1 a rigid and fixed structure.

Another variant of the device 1, shown in FIG. 12, provides the use of afirst channel section 5 in which the second portion 53 consists in ashaped channel section 66, fixed to an inner protrusion 56 of acorresponding first portion 52.

A variant of the first fixing means 10, shown in the FIGS. 16 and 17,provides that the first bracket mean 16 is constituted by two separateportions, reciprocally rotatably coupled and connected respectively tothe plate mean 15 and to a channel section 5, 6. The two portions canreciprocally rotate around an axis nearly orthogonal to the planedefined by the device 1, and they allow in this way to adjust theinclination of an horizontal upright 2 with respect to the verticaluprights, for instance when the device 1 must be inserted in an roomhaving sloping ceiling, such as an attic, a garret, a closet.

Fifth fixing means 40 connect the first channel section 5 to anotherfirst channel section 5 or second channel section 6. The fifth fixingmeans 40 are substantially constituted by a nearly U shaped connectionelement 41, whose portion is inserted inside the cavity of a channelsection 5, 6, while the remaining portion mates the bottom side 50 ofthe channel section 5 and is blocked to the latter. Particularly, theelement 41 is blocked to the inner protrusion 56 of the portion 52 ofthe channel section 5 by means of an insert 42, adjacent to the portion52, to which said insert 42 is removably connected d by a screw. It isfurther provided a spacer element 43 interposed between the screw headand the connection element 41 and between the latter and the insert 42,guarantying a more stable clamping of the fixing means 40.

The FIG. 18 shows a further variant of the wall device 1 includingspacing means 35 of uprights 2, side by side positioned and fit to forma space 36 delimited by said horizontal and vertical uprights 2. Thespace 36 is used for housing fittings, wirings, pipes or carries out aninterspace for the ventilation, usable for the summer and winterconditioning of the room in which the device is inserted.

The covering panels 4 are screwed to the uprights 2 or, referring toFIG. 19, the covering panels 4 are removably fixed to horizontaluprights 2 by means of a plurality of hanging means 9. Each hangingmeans includes a “S” shaped section element, fixed to the covering panel4 by means of screws to form a side for an horizontal uprights 2,consisting of a second channel section 6.

There are provided in this variant insulation panels 37, whose ends areinserted and fixed, for instance by glueing or by screws; in thelongitudinal openings 8 of the channel section 5, 6 which constitute theuprights 2. Covering panels 4 are provided on the external sides of thedevice 1, while further insulation panels, for instance made ofpolystyrene, or separation panels 38, made of cement material or thelike, can be inserted inside the interspace 35.

The main advantage of the present invention is to provide a wall devicefor fixtures and fittings, which is adjustable and customizableaccording to specific constructive requirements, and fit to be modifiedand also easily changed after the installation and the assemblage.

Other advantage is to provide a device, which can be fixed to anexisting wall, requiring a minimum prearrangement of the preexistingwalls, both in construction phase, and in restructuring phase.

Further advantage is to provide a device fit to constitute aself-supporting independent wall.

Other advantage is to provide a device having detachable coveringpanels, in order to allow an easy and quick installation and inspectionof the inner pipes and ducts and the hydro thermo sanitary apparatusessupported thereby.

1) Wall device for fittings characterized in that includes: a pluralityof horizontal and vertical uprights (2) mutually coupled by at leastfirst adjustable fixing means (10); connection means (20) for joiningthe fittings; the uprights (2) including at least a first channelsection (5) and a second channel section (6), each one including,starting from a respective bottom side (50), two respective opposed sideparts (51) and nearly orthogonal to the bottom side (50), two respectivefirst portions (52) parallel to the bottom side (50); said sides, partsand portions (50, 51, 52) of the at least first (5) and second (6)channel sections defining respective cavities (55) and longitudinalopenings (8) for the first fixing means (10) and for the connectionmeans (20); at least a first portion (52) of each first channel sectionhaving also a second portion (53) orthogonal to the first portions (52)and facing outwards the respective cavity (55). 2) Device according toclaim 1 characterized in that the second portions (53) of the firstchannel section (5) are carried out in a single body with the latter. 3)Device according to the claim 1 characterized in that the at leastsecond portion (53) consists of a shaped channel section (66) fixed toan inner protrusion (56) of a correspondent first potion (52). 4) Deviceaccording to the claim 1 characterized in that includes two verticaluprights (2), each one consisting of a first channel section (5), andtwo horizontal uprights (2), each one consisting of a second channelsection (6). 5) Device according to the claim 1 characterized in thateach channel section (5, 6) has in correspondence of the bottom side(50) at least a window (57). 6) Device according to the claim 1characterized in that the first fixing means (10) are fit for connectinga second channel section (6) to an upright (2) and they consist of aplate mean (15), which can be insert inside the cavity (55) of thesecond channel section (6) and is removably connected, through clampingmeans (7), to a first bracket mean (16), which can be fit inside thecavity (55) of the upright (2). 7) Device according to claim 1characterized in that includes second fixing means (11) consisting of aplate mean (15) and an abutment mean (17), removably connected throughclamping means (7) and fit for clamping the second portions (53) of afirst channel section (5) and the first portions (52) of a secondchannel section (6). 8) Device according to claim 6 or claim 7characterized in that the plate mean (15) has a nearly rectangular shapewith at least two flat faces (46), carried out in correspondence of twoopposite vertexes of the same plate. 9) Device according to claim 1characterized in that includes third fixing means (12), fit forconnecting two channel section (5, 6) and consisting of a second Ushaped bracket mean (18), which can be insert inside the cavity (55) ofthe first channel section (5) and is removably connected, throughclamping means (7), to inserting means (19), which can be fit inside thecavity (55) of the remaining channel section (5, 6). 10) Deviceaccording to any of the claims from 7 to 9 characterized in that theclamping means (7) include screws or bolts. 11) Device according toclaim 7 characterized in that the second fixing means (11) includespacer means (23) interposed at least between the abutment mean (17) andthe second channel section (6). 12) Device according to claim 6characterized in that the first bracket mean (16) includes two portions,rotatably coupled and connected respectively to a plate mean (15) and toa channel section (5, 6). 13) Device according to claim 1 characterizedin that includes sixth fixing means (13), consisting of an element whichcan be associated to the first channel section (5) and is provided withat least a couple of lateral slots (113) for inserting, by rotation, thefirst portions (52) of a second channel section (6). 14) Deviceaccording to claim 13 characterized in that the end, close to lateralslots (113), of central wall of sixth fixing means (13) has a firstrecess (114). 15) Device according to claim 13 characterized in that thefixing means (13) consists of a “C” shaped element which can be insertedinside the first channel section (5). 16) Device according to claim 15characterized in that the inner ends of lateral slots (113) havecorresponding tabs (115) protruding outwards to form a stop for thefirst channel section (5). 17) Device according to claims 14 and 15characterized in that the inner end of the first recess (114) has acorresponding tab (116) protruding outwards to form a stop for the firstchannel section (5). 18) Device according to claim -14 characterized inthat the end of central wall of sixth fixing means (13), opposed tolateral slots (113), has a second recess (117). 19) Device according toclaim 13 characterized in that the fixing means (13) consists of aparallelepiped shaped element. 20) Device according to claim 19characterized in that one free end of fixing means (13) is provided witha housing mean (118) for a related coupling mean (119) which can beinserted inside a channel section (5, 6). 21) Device according to claim20 characterized in that housing mean (118) and coupling mean (119) areprovided with respective holes (120) for a fixing pin (121). 22) Deviceaccording to claim 1 characterized in that includes a plurality offasten means (30) fit for fixing the device (1) to a wall (60). 23)Device according to claim 22 characterized in that each fasten mean (30)includes a plate mean (15), inserted in the cavity (55) of the secondchannel section (6) and removably connected to a L shaped bracket mean(31), by clamping means (7). 24) Device according to claim 23characterized in that the L shaped bracket mean (31) includes at least aslot (32) for the clamping means (7). 25) Device according to claim 1characterized in that includes a plurality of lock means (59) fit forfixing the device (I) to a space of a wall (60). 26) Device according toclaim 1 characterized in that includes connection means (24) connectingtwo side by side positioned first channel sections (5). 27) Deviceaccording to claim 1 characterized in that each connection mean (20)includes at least a support (21) of at least a respective fittingelement, removably connected to a plate mean (15), inserted in thecavity (55) of a second channel section (6), through clamping means (7).28) Device according to claim 27 characterized in that the connectionmeans (20) include at least a anti-rotation bracket (22), connected tothe support (21) and partially inserted in the longitudinal opening (8)of the related channel section (6). 29) Device according to claim 1characterized in that includes fourth fixing means (25) each having afirst portion (26), having at least a transversal seat (28), fit forhousing a part of a first portion (52) of a second channel section (6),and a protrusion (27), almost orthogonal to said transversal seat (28)and which can be inserted inside the cavity (55) of a respective channelsection (5, 6). 30) Device according to claim 29 characterized in thatthe fourth fixing means (25) include threaded means for blocking theportion (52). 31) Device according to claims 3 characterized in thatinclude fifth fixing means (40), fit for connecting two channel section(5, 6), and including at least an U shaped connection element (41), afirst portion of which is removably connected by clamping means (7), toan insert (42), for blocking the inner protrusion (56) of a firstchannel section (5), and whose remaining portion is inserted inside thecavity (55) of the remaining channel section (5, 6). 32) Deviceaccording to claim 31 characterized in that the fixing means (40)further include a shaped spacer element (43) interposed between theclamping means (7) and the connection element (41), and between thelatter and the insert (42). 33) Device according to claim 1characterized in that includes third fixing means (12), fit forconnecting two channel section (5, 6) and consisting of a plate mean(15), inserted inside the cavity (55) of a first channel section (5) andconnected by clamping means (7) to inserting means (19), fit inside thecavity (55) of the remaining channel section (5, 6). 34) Deviceaccording to claim 9 or 33 characterized in that the inserting means(19) consist of a channel section portion with rectangular crosssection. 35) Device according to claim 1 characterized in that includesat least a covering panel (4) fixed to the uprights (2). 36) Deviceaccording to claim 35 characterized in that the covering panels (4) arescrewed to the vertical uprights (2). 37) Device according to claim 35characterized in that the covering panels (4) are removably fixed tohorizontal uprights (2) by means of a plurality of hanging means (9).38) Device according to claim 37 characterized in that each hanging mean(9) includes a “S” shaped section element fixed to the covering panel(4) by means of screws in order to form a side for a horizontal uprights(2), consisting of a second channel section (6). 39) Device according toclaim 1 characterized in that include at least an insulation panel (37)whose peripheral portions are inserted inside the longitudinal openings(8) of the channel sections (5, 6). 40) Device according to claim 1 orclaim 39 characterized in that includes spacing means (35) of uprights(2), side by side positioned and fit to form a space (36) delimited bysaid uprights (2). 41) Device according to according to claim 37characterized in that includes sealing means interposed between theuprights (2) and the panels (4). 42) Device according to claim 26characterized in that the connection means (24) include an U shapedelement and screw means of side abutment of the first portions (52) ofthe first channel section (5). 43) Device according to claim 42characterized in that the connection means (24) include an abutmentspacer (29) of the side parts (51) of the first channel sections (5) forreciprocally spacing apart said side parts. 44) Device according toclaim 5 characterized in that each channel section (5, 6) has, incorrespondence of the window (57), a removable portion (61) fit for theinsertion of elements inside the window (57). 45) Device according toclaim 44 characterized in that the removable portion (61) is fixed tothe channel section (5, 6) by means of screw, nuts and washer.